Description
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For sale here we have the above…
1 Piece
Speed Controller For Four Wire Fan
With Temperature Sensor/Thermistor and Fan Fail/Stop Alarm
(These suit a 4 wire cooling fan for example – JMC 8025-12HB APW 12VDC 0.23A 4 Wire Speed/Temperature Controlled Fan 80x80x25mm OL0348)
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(Note: Above range only for PWM range, the actual control effect will vary depending on the fan.)
Temperature probe parameters: 50K B = 3950
Thermostat temperature zone error: depending on the temperature probe, generally 3-5%
Stall alarm minimum speed: 700-800 rpm
Function setting switch Description:
TFL (No. 1): The lowest temperature channel PWM setting, when ON the state of FAN1 PWM minimum is 40%, when OFF the minimum PWM of FAN1 is 20%.
TP1 TP2 (No. 2,3): Temperature channel control temperature zones are interpreted as follows (need to used with the temperature probe):
TP1 TP2 Accelerating temperature Full speed temperature
OFF OFF 35℃ 45℃
ON OFF 40℃ 55℃
OFF ON 50℃ 70℃
ON ON 60℃ 90℃
BF1 BF2 (No. 4,5): corresponds to FAN1 FAN2 stall alarm function switch, when the corresponding open channel fan breaks down, the controller will turn on the alarm buzzer, the alarm will automatically be eliminated when the fan is replaced . If BF1 and BF2 are both open (ON), then if either FAN1 or FAN2 or both stops, the controller will alarm!
Package includes:
1 x Speed controller
1 x Temperature probe
1 x Buzzer alarm
This is a three-channel fan speed/temperature controller, for 4-wire computer fans.
The first channel supports automatic temperature detecting and fan speed adjust.
The second and third channel permits external potentiometer adjust.
Should fan stop, first channel and second channel triggers buzzer to sound alarm.
Function Details:
Please look at the control switch area on the board:
TFL : PWM setting for temperature control: when set at ON, minimum speed of FAN1 is 40%; when set at OFF, minimum PWM of FAN1 is 20%
TP1 TP2 : control fan speed-up in relation to temperature. Setting details:
TP1 OFF, TP2 OFF: speed-up temperature: 35 Celsius Degrees; Full Speed temperature: 45 Celsius Degrees.
TP1 ON, TP2 OFF: speed-up temperature: 40 C; Full Speed temperature: 50 C.
TP1 OFF, TP2 ON: speed-up temperature: 50 C; Full Speed temperature: 70 C.
TP1 ON, TP2 ON: speed-up temperature: 60 C; Full Speed temperature: 90 C.
When temperature is below the speed-up temperature, fan runs at minimum speed. When temperature is over full speed temperature, fan will run at full speed.
BF1, BF2: the two are respectively fan-stop-alarm switch for FAN1, FAN2. When switched on, if a fan stops, the matching switch will trigger buzzer and LED to alarm. If both switches are on, then, when either of FAN1,FAN2 stops, or both stops, alarm will turn on.
Specifications of the controller PCB:
PCB Size: 50*43*13mm (L*W*H)
Mounting Hole: 44*37mm, diameter 3mm
Working voltage: DC12V
Load capacity: each channel max output current 5A, total max current 9A
Output range: first channel 20%~100% or 40%~100% (TFL=ON), second and third channel 10%~100% (Note: the ranges are only PWM range, in actual operation, depending on specific fans, control effect may fluctuate).
Temperature Probe: 50k B = 3950
Temperature Precision Range: depends on precision of temperature probe (Precision range 3%~5%)
Minimum fan-stop alarm speed: 700 to 800 rpm
PLEASE NOTE!
These parts came to us as part of a lot of surplus stock from a large distribution Co. and have been kept in storage for a time, they are however in pristine condition stored with us still in their original packaging and ‘as new’ in all respects, the photographs are representative of their excellent condition, and, as with all our products they come with a full guarantee.
If you have similar items to this, or indeed any electronic components that are surplus to requirements please contact us with details.
